John G. Kuhn

Progression-free survival: an important end point in evaluating therapy for recurrent high-grade gliomas.

Timothy F Cloughesy, Mark R Gilbert, Patrick Y Wen, 2008, Neuro-oncology.

NABTC phase I/II trial of ZD-1839 for recurrent malignant gliomas and unresectable meningiomas.

M. Prados, F. Lieberman, P. Wen, 2004, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.